66 lines
1.6 KiB
Factor
Executable File
66 lines
1.6 KiB
Factor
Executable File
! (c)2009 Joe Groff bsd license
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USING: kernel namespaces opengl.capabilities opengl.gl variants ;
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IN: gpu
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TUPLE: gpu-object < identity-tuple handle ;
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<PRIVATE
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VARIANT: gpu-api
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opengl-2 opengl-3 ;
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SYMBOL: has-vertex-array-objects?
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: set-gpu-api ( -- )
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"2.0" require-gl-version
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"3.0" { { "GL_ARB_vertex_array_object" "GL_APPLE_vertex_array_object" } }
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has-gl-version-or-extensions? has-vertex-array-objects? set-global
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"3.0" has-gl-version? opengl-3 opengl-2 ? gpu-api set-global ;
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HOOK: init-gpu-api gpu-api ( -- )
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M: opengl-2 init-gpu-api
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GL_POINT_SPRITE glEnable ;
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M: opengl-3 init-gpu-api
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;
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PRIVATE>
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: init-gpu ( -- )
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set-gpu-api
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init-gpu-api ;
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: reset-gpu ( -- )
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"3.0" { { "GL_APPLE_vertex_array_object" "GL_ARB_vertex_array_object" } }
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has-gl-version-or-extensions?
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[ 0 glBindVertexArray ] when
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"3.0" { { "GL_EXT_framebuffer_object" "GL_ARB_framebuffer_object" } }
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has-gl-version-or-extensions? [
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GL_DRAW_FRAMEBUFFER 0 glBindFramebuffer
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GL_READ_FRAMEBUFFER 0 glBindFramebuffer
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GL_RENDERBUFFER 0 glBindRenderbuffer
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] when
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"1.5" { "GL_ARB_vertex_buffer_object" }
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has-gl-version-or-extensions? [
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GL_ARRAY_BUFFER 0 glBindBuffer
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GL_ELEMENT_ARRAY_BUFFER 0 glBindBuffer
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] when
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"2.1" { "GL_ARB_pixel_buffer_object" }
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has-gl-version-or-extensions? [
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GL_PIXEL_PACK_BUFFER 0 glBindBuffer
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GL_PIXEL_UNPACK_BUFFER 0 glBindBuffer
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] when
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"2.0" { "GL_ARB_shader_objects" }
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has-gl-version-or-extensions?
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[ 0 glUseProgram ] when ;
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: flush-gpu ( -- )
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glFlush ;
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: finish-gpu ( -- )
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glFinish ;
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